This small climb should perhaps not be recommended.
Road conditions in the interesting section beyond Vallouise are horrible
(small bumps, gravel on the road, furrows)
while the road is just wide enough
for a car and a bike to pass each other.
This is likely annoying on sunny summer days
when many tourists drive their cars
to the parking lot at the end of the climb.
On the postive side the stage of the climb
is a narrow valley with a beautiful, wild
and steep river, surrounded by high peaks
among which Les Bans (3669 m).
The busy road from l'Argentière-la-Bessée
to Vallouise is a necessary starter.
In front of the church in Vallouise one should turn to the right.
The next 4 kilometers after this village are still easy (between descent and 7%)
but then the road rises steeply (10-11%).
The final 2.5 kilometers are less steep (5-8%).